Transcription of LECTURE NOTES - VI - Anasayfa
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LECTURE NOTES - VI - Anasayfa
LECTURE NOTES - VI FLUID MECHANICS Prof. Dr. At l BULU Istanbul Technical University College of Civil Engineering Civil Engineering Department Hydraulics Division CHAPTER 6 TWO- dimensional IDEAL FLOW INTRODUCTION An ideal fluid is purely hypothetical fluid, which is assumed to have no viscosity and no compressibility, also, in the case of liquids, no surface tension and vaporization. The study of flow of such a fluid stems from the eighteenth century hydrodynamics developed by mathematicians, who, by making the above assumptions regarding the fluid, aimed at establishing mathematical models for fluid flows.
deformation. This can be either linear or angular, as shown in Fig. 6.3 (a) and (b), respectively. The rotational movement can be specified in mathematical terms. Fig.6.4 shows the rotation of a rectangular fluid element in a two-dimensional flow. ΔxΔt Δx vvv Δx Δθ 1 x ABu Δθ 2 D' Δ u ΔyΔt y C' B' u uΔy y v x y x C Fig. 6.4
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